<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        .list {
            width: 990px;
            margin: 100px auto 0;
        }

        .item {
            padding: 15px;
            transition: all .5s;
            display: flex;
            border-top: 1px solid #e4e4e4;
        }

        .item:nth-child(4n) {
            margin-left: 0;
        }

        .item:hover {
            cursor: pointer;
            background-color: #f5f5f5;
        }

        .item img {
            width: 80px;
            height: 80px;
            margin-right: 10px;
        }

        .item .name {
            font-size: 18px;
            margin-right: 10px;
            color: #333;
            flex: 2;
        }

        .item .name .tag {
            display: block;
            padding: 2px;
            font-size: 12px;
            color: #999;
        }

        .item .price,
        .item .sub-total {
            font-size: 18px;
            color: firebrick;
            flex: 1;
        }

        .item .price::before,
        .item .sub-total::before,
        .amount::before {
            content: "¥";
            font-size: 12px;
        }

        .item .spec {
            flex: 2;
            color: #888;
            font-size: 14px;
        }

        .item .count {
            flex: 1;
            color: #aaa;
        }

        .total {
            width: 990px;
            margin: 0 auto;
            display: flex;
            justify-content: flex-end;
            border-top: 1px solid #e4e4e4;
            padding: 20px;
        }

        .total .amount {
            font-size: 18px;
            color: firebrick;
            font-weight: bold;
            margin-right: 50px;
        }
    </style>
    </head>

    <body>
        <div class="list">
            <!-- <div class="item">
          <img src="https://yanxuan-item.nosdn.127.net/84a59ff9c58a77032564e61f716846d6.jpg" alt="">
          <p class="name">称心如意手摇咖啡磨豆机咖啡豆研磨机 <span class="tag">【赠品】10优惠券</span></p>
          <p class="spec">白色/10寸</p>
          <p class="price">289.90</p>
          <p class="count">x2</p>
          <p class="sub-total">579.80</p>
        </div> -->
        </div>
        <div class="total">
            <div>合计：<span class="amount"></span></div>
        </div>
        <script>
            const goodsList = [
                {
                    id: '4001172',
                    name: '称心如意手摇咖啡磨豆机咖啡豆研磨机',
                    price: 289.9,
                    picture: 'https://yanxuan-item.nosdn.127.net/84a59ff9c58a77032564e61f716846d6.jpg',
                    count: 2,
                    spec: { color: '白色' }
                },
                {
                    id: '4001009',
                    name: '竹制干泡茶盘正方形沥水茶台品茶盘',
                    price: 109.8,
                    picture: 'https://yanxuan-item.nosdn.127.net/2d942d6bc94f1e230763e1a5a3b379e1.png',
                    count: 3,
                    spec: { size: '40cm*40cm', color: '黑色' }
                },
                {
                    id: '4001874',
                    name: '古法温酒汝瓷酒具套装白酒杯莲花温酒器',
                    price: 488,
                    picture: 'https://yanxuan-item.nosdn.127.net/44e51622800e4fceb6bee8e616da85fd.png',
                    count: 1,
                    spec: { color: '青色', sum: '一大四小' }
                },
                {
                    id: '4001649',
                    name: '大师监制龙泉青瓷茶叶罐',
                    price: 139,
                    picture: 'https://yanxuan-item.nosdn.127.net/4356c9fc150753775fe56b465314f1eb.png',
                    count: 1,
                    spec: { size: '小号', color: '紫色' },
                    gift: '50g茶叶,清洗球'
                }
            ]

            document.querySelector('.list').innerHTML = goodsList.map(i => {
                // 解构对象
                const { picture, name, spec, price, count, gift } = i
                // 让精度不损失
                let zprice = (((price * 100) * count) / 100).toFixed(2)
                // Object.values(spec) 静态方法转换数组然后在join装换字符串
                let specs = Object.values(spec).join('/')
                //    console.log(i.gift);
                let ta = gift ? gift.split(',').map(i => `<span class="tag">[正品]${i}</span>`).join("") : ''
                return `   <div class="item">
          <img src="${picture}" alt="">
          <p class="name">${name}${ta}</p>
          <p class="spec">${specs}</p>
          <p class="price">${price.toFixed(2)}</p>
          <p class="count">${count}</p>
          <p class="sub-total">${zprice}</p>
        </div> `
            }).join("")

            let pr = goodsList.reduce((peve, itm) => peve + (itm.price * 100 * itm.count) / 100, 0)
            document.querySelector('.amount').innerHTML = pr.toFixed(2)
        </script>
    </body>

</html>